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Full-Text Articles in Mechanical Engineering
Experimental Investigation Of Cavitation Signatures In An Automotive Torque Converter Using A Microwave Telemetry Technique, Carl L. Anderson, L. Zeng, P. O. Sweger, Amitabh Narain, Jason R. Blough
Experimental Investigation Of Cavitation Signatures In An Automotive Torque Converter Using A Microwave Telemetry Technique, Carl L. Anderson, L. Zeng, P. O. Sweger, Amitabh Narain, Jason R. Blough
Department of Mechanical Engineering-Engineering Mechanics Publications
A unique experimental investigation of cavitation signatures in an automotive torque converter under stall conditions is reported. A quantitative criterion is proposed for predicting early and advanced cavitation in terms of suitable nondimensional pump speeds. The dimensionless pump speed that marks early cavitation is obtained by relating this parameter to the appearance of charge-pressure–dependent pressure fluctuations in the differential pressure transducer readings. The differential pressure transducers were mounted at well-defined locations in the pump passage of a torque converter. The data were transmitted by a wireless telemetry system mounted on the pump housing. Data were received and processed by a …
Reynolds-Stress Turbulence Model In The Kiva Code For Engine Simulation, Yeow-Khern Siow
Reynolds-Stress Turbulence Model In The Kiva Code For Engine Simulation, Yeow-Khern Siow
Dissertations, Master's Theses and Master's Reports - Open
A Reynolds-Stress Turbulence Model has been incorporated with success into the KIVA code, a computational fluid dynamics hydrocode for three-dimensional simulation of fluid flow in engines. The newly implemented Reynolds-stress turbulence model greatly improves the robustness of KIVA, which in its original version has only eddy-viscosity turbulence models. Validation of the Reynolds-stress turbulence model is accomplished by conducting pipe-flow and channel-flow simulations, and comparing the computed results with experimental and direct numerical simulation data. Flows in engines of various geometry and operating conditions are calculated using the model, to study the complex flow fields as well as confirm the model’s …